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Mech.Brake
GainBoost
Relay
Torqueref.
MotorSpeed
Premag
Torque Ramp
Time
p. 2-27
Torque Ref. 2-26
Gain Boost Factor
p. 2-28
Brake
Release
Time
p. 2-25
Ramp 1 upp. 3-41
Ramp 1 downp. 3-42
Stop
Delay
p. 2-24
Activate
Brake
Delay
p. 2-23
1
2
3
130BA642.12
II
I
Figure 3.34 Brake Release Sequence for Hoist Mechanical Brake Control
I)
Activate brake delay:
The adjustable frequency drive starts again from the mechanical brake engaged position.
II)
Stop delay:
When the time between successive starts is shorter than the setting in
2-24 Stop Delay
, the adjustable
frequency drive starts without applying the mechanical brake.
For an example of advanced mechanical brake control for hoisting applications, see.
Product Introduction
Design Guide
58
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
MG34S222
3
3
Summary of Contents for VLT AutomationDrive FC 300
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